[Java知识库]java-实战：进制转换

KevenKeven?今天上课刚刚学了?22?进制与?1010?进制的转化，但他觉得这个题目太简单了，于是他想加强一下这个题目，所以他考虑将?a - za?z?这26个小写字母分别表示?10-3510?35，并且希望你将一个?ss?进制的数字?nn?转化为?kk??进制的数字。

import java.io.*;

import java.math.BigInteger;

public class Main {

????????public static void main(String[] args)?throws IOException{
????????????BufferedReader br =?new BufferedReader(new InputStreamReader(System.in));
????????????String str;
????????????while((str=br.readLine()) !=?null){
????????????????String num = str;
????????????????String[] ss = br.readLine().split(" ");
????????????????int s = Integer.parseInt(ss[0]);
????????????????int k = Integer.parseInt(ss[1]);
                //long n10 = Long.parseLong(num,s);? 
                //1)将S进制的n转化为10进制的n10；??Integer.paserInt(n,s);

                //String nk = Long.toString(n10,k);? 
                //2）将10进制的n10转换为k进制的nk Integer.toString(n10,k);
                //?System.out.println(nk);
???????????????System.out.println(new BigInteger(num,s).toString(k));

????????????}

????????}

}